Spark-arrester



(LABOS.

SPARK ARRESTER. No. 11,057. Patented June 13, 1854.

..wAs s UNITED STATES PATENT OFFICE.

OASIMIR ABOS, OF NEW BRUNSWICK, NEW JERSEY.

SPARK-ARRESTER.

Specification of Letters Patent No. 11,057, dated June 13, 1854.

panying drawings, forming part of this specification, in which- Figure1, is a horizontal section of a spark arrester with my improvements.Fig. 2, is a vertical central section of the same as in operation.

Similar letters of reference indicate corresponding parts in bothfigures.

Th1s lnvention relates to a new manner of constructing locomotive sparkarresters, whereby the liability of the sparks escapmg,

is greatly lessened, the draft space increased, and the greater portionof the sparks can be returned or conducted back into the fire box orchamber, so as to be consumed. This latter object being efi'ected by theaction or pressure of the exhaust steam that brought them up out of thefire chamber.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A, represents the outer conical stack or chamber, mounted on the firebox, B, the top of the stack, A, is made concave, and has a centraldraft passage, C. D, is a taper pipe extending down from the passage, 0,into the central conducting or return pipe, E, as representedethis pipeprevents the sparks passing out directly through the passage, C, as willbe evident from the drawing.

E, is the central conducting pipe, made flaring at its upper extremity,and having a yielding or hinged self-adjusting valve, F, at its lowercurved endthis pipe is sustained and kept in place by the stays, G, Gr;its objectis to receive and conduct the sparks back into the firechamber, as fast as they rise to the top of the stack.

The stack is intended to be made on the most approved plan, and itsdeflecting surface so situated or arranged, that the sparks will notfail to be deflected into the flaring mouth of the central pipe E.

H, is an annular space formed between the outer periphery of the pipe,E, and the inner periphery of the stack, for the exhaust steam andsparks to pass through as they pass to the top of the stack.

By examining the drawing, the operation may be clearly understood, itbeing as follows :The exhaust steam and sparks rise through the space,'H, and come in contact with the top and sides of the stack, A, asindicated by the arrows, l, and are deflected thereby, and caused tofall into the flaring mouth of the central pipe, E, and by their gravityand the pressure of the exhaust steam, which causes the valve, F, toopen, are made to pass down the pipe, E, and out through the valve, F,into the fire box, as indicated by the arrows, 2. As the sparks escapeinto the fire box or receptacle, and during the temporary suspension ofthe pressure of the exhaust, the valve closes, as shown by dotted lines,and the remaining steam takes its course through the pipe, D, andescapes through the draft passage, C, as indicated by the dotted arrows,3. Owing to the valve closing automatically, all possibility of sparks,&c., returning through the pipe, D, is avoided.

By making the spark arrester without a central smoke pipe, and sidespark chamber, and having the stack itself serve as the smoke pipe, itmay be obvious, the draft will be greatly increased.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination and arrangement of the draft pipe, D; central sparkconducting or return pipe, E; hinged self closing valve, F, and stack,A, substantially as, and for the purpose herein described.

CASIMIR .ABOS.

Witnesses:

S. H. WALES, J No. W. HAMILTON.

